Do you need to be a seperate charger controller or can it operate "as is"?
26868
Mine is hooked up directly without a controller to a water pump. It will depend on what you are using it with--the voltage varies depending on the sun.
26869
That depends on what you want to use it for. For charging a battery I would use a separate charge controller. A 12 volt panel can put out 20 volts in peak sunlight which would over charge and damage your battery. For something like an DC attic ventilation fan you can just run it direct. The fan will spin faster or slower depending on the amount of sunlight / voltage, which is not a problem.
26870
I bought an inexpensive charge controller to prevent my battery from overcharging, but it was definitely working without the controller.
26871
The general answer is most batteries can have 1/10th "C" directly connected without risk of overcharging. So this 20W cell could be directly connected to your car battery. For gel cells you'd use the AH rating as "C" so a small UPS/exit light/etc 8 AH gell cell should only have a 10W cell directly conected at max without charge controller. I always suggest a blocking diode otherwise the battery can discharge (albeit slowly) at night through the cell. You'd want a 5A Schottkey diode. That said if it's on top of your car the daily charge would far more make up for any night discharge. Diode more important for multi panels and extended off-grid loads. The general answer is most batteries can have 1/10th "C" directly connected without risk of overcharging. So this 20W cell could be directly connected to your car battery. For gel cells you'd use the AH rating as "C" so a small UPS/exit light/etc 8 AH gell cell should only have a 10W cell directly conected at max without charge controller. I always suggest a blocking diode otherwise the battery can discharge (albeit slowly) at night through the cell. You'd want a 5A Schottkey diode. That said if it's on top of your car the daily charge would far more make up for any... » Read More The general answer is most batteries can have 1/10th "C" directly connected without risk of overcharging. So this 20W cell could be directly connected to your car battery. For gel cells you'd use the AH rating as "C" so a small UPS/exit light/etc 8 AH gell cell should only have a 10W cell directly conected at max without charge controller. I always suggest a blocking diode otherwise the battery can discharge (albeit slowly) at night through the cell. You'd want a 5A Schottkey diode. That said if it's on top of your car the daily charge would far more make up for any night discharge. Diode more important for multi panels and extended off-grid loads. « Show Less
26872
It depends on how you want to use it. But you should get a charger controller just to be safe. You could probably run a computer fan as is but it would eventually burn out from the high voltage, which is about 22 Volts.
1216531
Yes. You'll need a charge controller too, but they're inexpensive. Of course is matters how often you open the gate.
99420
No. You do not need a charge controller until you exceed 15watts of power. The discharge protection is a simple diode that prevents the battery from draining back out to the pane at night. But because of that diode, DO NOT START THE CAR WITH THE PANEL STILL CONNECTED TO THE BATTERY! You will destroy the diode and weaken the panel's charging ability.
630575
I bought this device in order to avoid let on mY PS4 more time than I expected. This charger for me is very usefull, becasue let you charge two controllers at the same time. However, if you have just one controller, maybe it is not a good idea.and about the time, for me is very fast.
1167879
There is one inside controller.And u buy one separately a wall charger or USB.
1137739
No, it only allows one of each. However, there is an extra usb connection that allows a cable to be used for charging another motion controller
607046
No, this is not a power supply, only a controller. You still have to provide a separate power supply.
1373853
I have not tried this and wonder why you want to unless you have too much power for one. They do make a controllers that works up to sixty amps. I don't know how you want to wire this. Using separate panels is the only thing I can guess. I use my meter every day to read the total amps going to my batteries and the voltage at any given time. The lights on the front of the controller tell you most things about the system but not the voltage or the current. The voltage tells you how close you are to a full charge. If you have two sets of panels you would need two controllers with two meters. Hope this helps. I have not tried this and wonder why you want to unless you have too much power for one. They do make a controllers that works up to sixty amps. I don't know how you want to wire this. Using separate panels is the only thing I can guess. I use my meter every day to read the total amps going to my batteries and the voltage at any given time. The lights on the front of the controller tell you most things about the system but not the voltage or the current. The voltage tells you how close you are to a full charge. If you have two sets of panels you would need two controllers with two meters.... » Read More I have not tried this and wonder why you want to unless you have too much power for one. They do make a controllers that works up to sixty amps. I don't know how you want to wire this. Using separate panels is the only thing I can guess. I use my meter every day to read the total amps going to my batteries and the voltage at any given time. The lights on the front of the controller tell you most things about the system but not the voltage or the current. The voltage tells you how close you are to a full charge. If you have two sets of panels you would need two controllers with two meters. Hope this helps. « Show Less
827820
yes I don't see why it would not work, you should use a charge controller to prevent overcharging
1316171
no, a charge controller must be between solar collector and the battery. The charge time depends on solar intensity, and duration.
1696516
yes, but you'll want to investigate whether to put them in series or parallel. You'll need a simple little parallel adapter if you choose parallel. Learn which voltages your charge controller accepts and works efficiently with, calculate what your array puts out, and then decide on your wiring method and final setup.
991578
Hi, no. I own 2 in one space and both must plug into a power source independently.
1188302
It does not require a seperate charger. You can plug it in using the supplied USB cord.
1687060
Hi PeterYes, you are quite right. I hadn't tried that but my unit will not do both at the same time. In practice I have a dual USB charger so the need has never arisen. Regards Richard Allan.
202992
I'm sure you can. Weird that the other charger was unable to charge the controller.
1958965
I currently use this charger and it works fine.One caveat is that the controller(2002 Club) I have over timedegraded to cause the charger to not work. I ordered a secondcharger and when I received it had no output when hooked tothe cart. After some surfingand a call to the MFR I figured it was the cart controller sensingthe charge voltage and shutting off the charger. After I bypassed thecart controller so the charger fed the batteries directly all was fine.So now I have have two chargers........they work fine.By the way the MFR was very nice to discuss my issue withme and was very satisfied. Good luck. I currently use this charger and it works fine.One caveat is that the controller(2002 Club) I have over timedegraded to cause the charger to not work. I ordered a secondcharger and when I received it had no output when hooked tothe cart. After some surfingand a call to the MFR I figured it was the cart controller sensingthe charge voltage and shutting off the charger. After I bypassed thecart controller so the charger fed the batteries directly all was fine.So now I have have two chargers........they work fine.By the way the MFR... » Read More I currently use this charger and it works fine.One caveat is that the controller(2002 Club) I have over timedegraded to cause the charger to not work. I ordered a secondcharger and when I received it had no output when hooked tothe cart. After some surfingand a call to the MFR I figured it was the cart controller sensingthe charge voltage and shutting off the charger. After I bypassed thecart controller so the charger fed the batteries directly all was fine.So now I have have two chargers........they work fine.By the way the MFR was very nice to discuss my issue withme and was very satisfied. Good luck. « Show Less
164595
I bought it with the accessory pack so I could charge one battery while running of the other. Don't know about separate.